Element block pseudo-element :after generated with padding 20px transition z-index auto height auto cursor default text-shadow 1px 1px 1px rgba(0,0,0,0.2) background opacity 1 float none position static transform overflow hidden border-radius box-sizing content-box display block border 0px rgba(0,0,0,1) solid line-height 1 margin 0px font-weight normal font-size 16px width 160px box-shadow 1px 1px 1px rgba(0,0,0,0.3) outline none